PMID: 8585794Jan 1, 1993Paper

Proposal for the introduction of a metabolizable energy feed evaluation system based on unitary parameters and principles for all farm animals. 1. Energy feed evaluation for cattle

Archiv für Tierernährung
L Hoffmann

Abstract

The energy availability from the feedstuffs and the energy requirement of animals are characterized by the metabolizable energy. The metabolizable energy of the feed (feedstuff, ration) is interpreted as potential energy. For comparative analyses within and between animals species with regard to the energetic feed value of single feedstuffs the parameter "relative fat retention effect" is introduced. The metabolizable energy of a ration is estimated in consideration of energy level, live weight and protein production (protein in body gain and milk). The energy requirement is calculated factorial--as a rule by the partial utilization of metabolizable energy for partial performances (e.g. kf, kp, kl) in connection with the level and kind of partial performance; km is not used in the system. The proposed system of energetic feed evaluation is available as "computer variant" as well as "manual variant". The computer programme is fitted first of all to application in research and teaching. (The complete documentation of the proposal for energetic feed evaluation for cattle including a discette for using of the computer programme for scientific applications can be claimed in limited extend from the author.).

References

Apr 1, 1978·Archiv für Tierernährung·G BurlacuJ Stavri
Apr 1, 1988·Archiv für Tierernährung·L HoffmannW Jentsch
Nov 1, 1987·Archiv für Tierernährung·R SchiemannL Hoffmann
Apr 1, 1971·Journal of Dairy Science·P W MoeW P Flatt
Jul 1, 1981·Archiv für Tierernährung·L HoffmannW Jentsch

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